<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */

/**
 * Smarty truncate modifier plugin
 *
 * Type:     modifier<br>
 * Name:     truncate<br>
 * Purpose:  Truncate a string to a certain length if necessary,
 * optionally splitting in the middle of a word, and
 * appending the $etc string or inserting $etc into the middle.
 * @link http://smarty.php.net/manual/en/language.modifier.truncate.php
 * truncate (Smarty online manual)
 * @author   Monte Ohrt <monte at ohrt dot com>
 * @param string
 * @param integer
 * @param string
 * @param boolean
 * @param boolean
 * @return string
 */
function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false) {
	if ($length == 0)
		return '';
	
	if (strlen ( $string ) > $length) {
		$length -= min ( $length, strlen ( $etc ) );
		if (! $break_words && ! $middle) {
			$string = preg_replace ( '/\s+?(\S+)?$/', '', substr ( $string, 0, $length + 1 ) );
		}
		if (! $middle) {
			return substr ( $string, 0, $length ) . $etc;
		} else {
			return substr ( $string, 0, $length / 2 ) . $etc . substr ( $string, - $length / 2 );
		}
	} else {
		return $string;
	}
}

/* vim: set expandtab: */

?>
